We are Logical

The Logical Group was set up in 2010 by our MD Barry O’Halloran, a Chartered Building Surveyor with over 20 years experience. 

Going beyond the obvious for clients and bringing a variety of disciplines and skills as part of an integrated service, Logical has developed a reputation for real engagement, honest advice and exceptional results. Our customers know we are a firm that they can trust but one that is also fun and stimulating to work with. Our main areas of expertise cover commercial property, small, large or somewhere in between.


Video Introduction

Barry O’Halloran MSCSI RICS

Managing Director

Barry is a Chartered Building Surveyor, Qualified Quantity Surveyor and Architectural Technician.
A Commercial Property Specialist with over twenty years experience Barry has worked on a variety of portfolios across Ireland, UK and mainland Europe. He is known for his expertise in all aspects of strategy, feasibility, acquisition, transformation and disposal.

Una Zeni Dip Arch Tech MRIAI Tech

Operations Director

Una, a qualified Architectural Technologist. She has over 20 years experience in the areas of office design, new build, refurbishment, office & retail fit out, project management, space planning and interior design.

Brendan Campbell ASCSI

Building Surveyor

Brendan is a qualified Building Surveyor. His areas of expertise include project management, space planning, refurbishment and professional services including building condition survey reports, dilapidations as well as value engineering. He is currently in the process of becoming chartered with the Society of Chartered Surveyors Ireland.

Valerie O’Keeffe MSc (Mgmt)

Business Development

An experienced Marketing and Client Relationship Manager, Valerie has 20 years experience managing customer relationships and delivering what they want. Managing projects efficiently and helping customers meet & exceed their goals is key for her.

Christopher Deery, MSCSI, MRICS, B.Sc. (Hons.) in Building Surveying.

Chartered Building Surveyor

Christopher is a Chartered Building Surveyor. He graduated from Dundalk Institute of Technology 2012 and has since gained valuable experience working on a number of high profile building projects over the past few years.
He joined Logical REC in May 2015 and is heading up a wide range of projects and professional work for our commercial clients.

Cathal Maher, B.Sc. Hons.

Building Surveying

Cathal qualified as a Building Surveyor in 2014 from Dundalk Institute of Technology. Cathal has successfully designed and managed a number of refurbishment undertakings within commercial office buildings of varies scales and has a wide variety of experience in areas such as Planned Preventative Maintenance Surveys, Design and Space Planning, Defect Analysis, Pre-Lease Condition Surveys and Measured Surveys.
Cathal joined Logical in January 2018, having spent the previous 4 years within the Building Consultancy Department of a large property management company, carrying out the full remit of Building Surveying duties. Cathal is a member of The Society of Chartered Surveyors and is currently working towards obtaining his chartered accreditation.

James McParland, ASCSI B.Sc. (Hons.)

Building Surveyor

James joined the firm in 2015 following receiving a B.Sc.(Hons.) in Building Surveying. He has gained valuable experience acting as lead consultant on a number of high profile construction projects and a wide range of building surveying services for private clients, financial institutions, asset & fund managers and commercial property advisors. These services include fire safety corrective works, commercial building survey reports, technical due diligence, reinstatement cost assessments, schedules of dilapidations and reference area schedules.

James is currently undertaking the Postgraduate Diploma in Fire Safety Practice at Trinity College Dublin, in order to become a Fire Safety Consultant in May 2019 and is also a trainee member of the Society of Chartered Surveyors Ireland (SCSI) on the structured Assessment of Professional Competence (APC) to become a Chartered Building Surveyor in November 2019.

Marian Kelly: B.SC. (Hons)

Team Leader

Marian graduated with a B.Sc. in Architecture from the Philippines in 2012. She also successfully completed the Foreign Licensure Examination for Architects – in Abu Dhabi, UAE in 2014.

Over the past five years, Marian has gained considerable experience working in the Design & Construction industry in UAE. She joined Logical in 2018 as Interior Designer/Architect. Her services include preparation of design proposals, space planning and design drawings.

Marian is working on her registration to become a member of the Royal Institute of Architect’s Ireland RIAI in 2019.

Niall Dullaghan B.Sc. (Hons.) in Building Surveying, M.Sc. in Construction and Project Management

Building Surveyor

Niall joined the Building Surveying division of Logical REC in November 2016. He is centrally involved in a wide range of project and professional work for our commercial clients.
Niall gained valuable experience over the past few years acting as lead consultant in a wide range of commissions, from technical due diligence to refurbishment works and commercial fit-outs.He joined Logical REC in May 2015 and is heading up a wide range of projects and professional work for our commercial clients.

Donna Carey, B.Sc. (Hons.) Construction Economics & Management. Diploma in Construction Technology.

Quantity Surveyor

Donna qualified as a Quantity Surveyor in 2003 from Dublin Institute of Technology, Bolton Street. She has extensive experience in the area of Construction Cost Management bringing projects through the full cycle from feasibility stage to completion. She liaises closely with the Logical Contracting Project Managers on all of our projects to ensure best cost advice & value for money.
Prior to joining Logical, Donna worked as a Quantity Surveyor for several Building Companies as well as a number of Architect Firms in Dublin.

Gary Mathews, B.Sc. (Hons.)

Building Surveying

Having qualified as a Building Surveyor in 2014 from Dundalk Institute of Technology, Gary has acted as lead consultant over a wide variety of appointments including Technical Due Diligence, Schedule of Dilapidations, Condition Surveys and Defect Analysis through to Design and Project Management.
He joined Logical in June 2017 having spent the previous 2 years with a leading commercial consultancy based practice. Gary is currently in the process of becoming a Chartered Building Surveyor with the Society of Chartered Surveyors Ireland.

Ivor O’Brien

Design Team Member

Ivor joined the Logical team in November 2016 as an intern. He has B.Sc in Architecture from UCD. Ivor is working on digital drawings for planning applications and design works for early stage projects.